U0285 Code - Lost Communication With Lost Communication With Active Grille Air Shutter Module 'B'
Quick Answer
The Powertrain Control Module (PCM) continuously monitors the Local Interconnect Network (LIN) communication line for messages from the Active Grille Air Shutter Module 'B'. Common causes include Faulty Active Grille Air Shutter Module 'B', Active Grille Air Shutter Module 'B' harness is open or shorted, Active Grille Air Shutter Module 'B' circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- U0285 indicates Lost Communication With Lost Communication With Active Grille Air Shutter Module 'B'.
- Common causes
- Common causes include Faulty Active Grille Air Shutter Module 'B', Active Grille Air Shutter Module 'B' harness is open or shorted, Active Grille Air Shutter Module 'B' circuit poor electrical connection.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code U0285 Description
What are the Possible Causes of the DTC U0285?
- Faulty Active Grille Air Shutter Module 'B'
- Active Grille Air Shutter Module 'B' harness is open or shorted
- Active Grille Air Shutter Module 'B' circuit poor electrical connection
How to Fix the DTC U0285?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the U0285 code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Information for Specific Makes
- U0285 Buick — Lost Communication With Active Grille Air Shutter 2 Motor Module
- U0285 Cadillac — Lost Communication With Active Grille Air Shutter 2 Motor Module
- U0285 Chevrolet — Lost Communication With Active Grille Air Shutter 2 Motor Module
- U0285 Ford — Lost Communication With Lost Communication With Active Grille Air Shutter Module 'B'
- U0285 GMC — Lost Communication With Active Grille Air Shutter 2 Motor Module
- U0285 Lincoln — Lost Communication With Lost Communication With Active Grille Air Shutter Module 'B'
- U0285 Mercury — Lost Communication With Lost Communication With Active Grille Air Shutter Module 'B'
Frequently Asked Questions about U0285 Code
1. What are common symptoms of OBDII code U0285 (Lost Communication With Active Grille Air Shutter Module 'B')?
- Common symptoms include the check engine light coming on, reduced fuel efficiency, and potential issues with the vehicle's active grille air shutter system.
2. What can cause OBDII code U0285 to trigger?
- This code can be triggered by a faulty active grille air shutter module 'B', damaged wiring or connectors related to the module, or communication network issues.
3. How can I diagnose the cause of OBDII code U0285?
- Diagnosing this code involves checking the wiring and connectors related to the active grille air shutter module 'B', testing the module itself for faults, and ensuring there are no communication network problems.
4. Can I still drive my vehicle with OBDII code U0285 present?
- It is generally safe to drive the vehicle with this code, but it is recommended to have it diagnosed and repaired as soon as possible to prevent potential damage to the active grille air shutter system.
5. What are some repair tips for fixing OBDII code U0285?
- Repair tips include checking for loose or damaged wiring, ensuring connectors are secure, testing the active grille air shutter module 'B' for faults, and resetting the code after any repairs are made.
6. Does fixing OBDII code U0285 require specialized tools or expertise?
- While diagnosing and repairing this code may require some knowledge of automotive systems, it can usually be done with basic tools like a multimeter and a diagnostic scanner.
7. How much does it typically cost to repair OBDII code U0285?
- The cost of repairing this code can vary depending on the specific cause, but it may range from a simple wiring repair to replacing the active grille air shutter module 'B', potentially costing a few hundred dollars.
8. Are there any recalls or technical service bulletins related to OBDII code U0285?
- It is recommended to check with the vehicle manufacturer or authorized dealerships for any recalls or technical service bulletins related to this code, as there may be specific repair instructions or coverage.
9. Can extreme weather conditions affect OBDII code U0285?
- Extreme weather conditions can potentially impact the active grille air shutter system, leading to communication issues and triggering code U0285, so it's important to inspect the system for any weather-related damage.
10. How long does it take to repair OBDII code U0285?
- The repair time for this code can vary depending on the underlying cause and complexity of the repair. Simple fixes like repairing wiring may take less than an hour, while replacing the module could take a few hours.
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